pr do what util-linux's
column can do:
The column utility formats its input into multiple columns. The util support three modes:
columns are filled before rows This is the default mode (required by backward compatibility).
rows are filled before columns This mode is enabled by option -x, --fillrows
table Determine the number of columns the input contains and create a table. This mode is enabled by option -t, --table and columns formatting is possible to modify by --table-* options. Use this mode if not sure.
Is it correct that
pr -t can do the same thing as
column -t in the last mode?
pr do the same thing as the first two modes of